Introduction
Pipe fitting is an important process in the installation and maintenance of device systems. It refers to the operations of connecting different pipe sections, setting up intermediate equipment of device system, connecting pipes with pump, valve and other equipment, and forming required device system. The purpose of pipe fitting is to ensure the safety and reliability of design pressure in the device system operation, meet the requirements for smooth operation and even if an accident occurs in the device system, the range of damage can be controlled and other people and environment can be protected.
Process Description
1. Making sure that all parts have been checked. Before pipe fitting, the installation personnel of the device system shall check whether all the materials received and all parts have been compiled. First of all, check the name, type, size, quantity and requirements of the article, and then check whether the actual parts are in line with these requirements.
2. Installing the devices to be welded. The welding position of the device first needs to be determined, and then the pipe fitting process requires the flanges and the pipes to be fastened and welded to fixed the position of the pipe connection device. Then the welding must be checked to confirm that the welding is solid.
3. Connecting the pipes with other equipment. Before installation, the pipe thread should be checked, and the thread joint shall be properly polished and coated with lubricant before installation so that the connection tension can be increased and the auger is not easily damaged. After installing the pipe, tightening the pipes should pay attention to that total resistance force should be evenly distributed to prevent deflection, jutting and air leakage.
4. Installing and adjusting the valves. Install the valve in the device system in accordance with the design requirements. When installing, the valve stem should be in the state of fully open or fully closed. When installing the valve, the connecting thread and flannel sleeve should be correctly used, and the inlet should be in line with the outlet on the scene. After installation, technical staffs should adjust the valves in accordance with the process parameters, and then commissioning the valves.
5. Cleaning up and commissioning. After the pipe fitting is completed, the debris in the welding and pipeline shall be completely cleaned. After cleaning up, the pipe system should be tested for air tightness to ensure that there is no air leakage.
Conclusion
In short, the pipe fitting of device system includes several parts: checking, welding, adjusting and so on. The pipe fitting of the device system should be carefully done in accordance with the professional techniques and standards. It is necessary to pay attention to the quality and safety of each part installation to minimize harms to environment, personnel and objects.
